You’ve done the tests. Your doctor said everything looks normal. But you still feel exhausted, foggy, and stuck. Functional Medicine for Chronic Symptoms in Staten Island looks beyond standard lab results to understand why persistent symptoms may continue even when routine testing does not reveal a clear cause.
At Functional Medicine by Dr. Marina Fest, DNP, on Hylan Boulevard in Staten Island, we help patients explore the underlying factors that standard care may miss. Dr. Fest looks at the broader picture of your health and starts with one important question: why is this happening in the first place?
How Functional Medicine Gets to the Root of Chronic Symptoms
Conventional care focuses on naming a condition and treating its symptoms. That works for many situations. For patients with chronic, layered concerns, that approach often leaves them cycling through appointments with no real resolution.
Dr. Fest looks deeper. She evaluates how your digestion, hormones, metabolism, and inflammation levels interact with each other. After years in traditional healthcare, she saw that chronic symptoms stay unresolved when care only manages diagnoses. This practice was built around one belief: functional medicine that gets to the why.
What Symptoms Bring Most Patients Through Our Door
Persistent fatigue that sleep never fixes is one of the most common reasons patients come to us. Others arrive dealing with hormonal imbalances, mood changes, brain fog, or perimenopause symptoms that got brushed aside at previous appointments.
Weight that won’t respond despite real effort, digestive symptoms, thyroid concerns, and chronic inflammation are just as common here. These issues often connect to each other, and that connection is exactly what we look for before building any care plan.
What Your Care Actually Looks Like

Every patient begins with a comprehensive functional evaluation. Dr. Fest reviews your medical history, lifestyle habits, stress patterns, digestive health, hormonal history, and any prior lab work. This is not a rushed intake. We take the time needed to understand your full picture first.
When testing makes clinical sense, Dr. Fest uses tools like GI-MAP microbiome analysis, comprehensive hormone panels, micronutrient testing, and inflammatory markers. These go beyond what standard labs typically measure, which means imbalances that were previously invisible finally show up clearly.
How We Build Your Personalized Protocol
Once your evaluation and testing are complete, Dr. Fest builds a plan around your specific biology. That plan may include targeted nutrition strategies, precision supplementation, gut restoration, hormone optimization, or lifestyle support, depending entirely on what your results reveal.
Nothing here is templated. Your protocol reflects your data, your history, and your goals. We also schedule regular follow-ups to track progress, review updated results, and adjust your plan as your health responds over time.
Who This Practice Is the Right Fit For
This practice works best for patients who want root cause answers, not quick fixes. If you’ve felt dismissed despite normal labs, or if you’re ready to understand your health rather than manage symptoms one at a time, Dr. Fest is a provider who will genuinely listen.
Some patients come to us before anything is seriously wrong. They want to understand their biomarkers and get ahead of problems early. That proactive mindset fits naturally within how we approach care every day.
Dr. Fest’s Training and What It Means for Your Care
Dr. Marina Fest holds a Doctor of Nursing Practice degree, a doctoral-level qualification with advanced training in both primary care and functional medicine. You get the clinical rigor of a doctoral-level provider. That approach is grounded in science, not trends.
Patients consistently describe her as a great listener who explains things clearly and engages with the full picture of their health. That collaborative style is not an add-on here. It is how every appointment runs from the first visit.
Book Your Consultation Today
Call us at (347) 222-9107, book directly through our online scheduler at app.malla.co/join/marina-fest-099694, or reach us by email at lifestyledoctorwellness@gmail.com. New patients are always welcome, and our team will guide you through every step.
We are located at 2627 Hylan Blvd C5, Staten Island, NY 10306. Getting started is straightforward. Call our office, book online, and Dr. Fest will take it from there.
Frequently Asked Questions
How is functional medicine different from a regular doctor visit?
Functional medicine identifies what is causing your symptoms, not just what to label them. Dr. Fest looks at gut health, hormones, nutrition, and metabolism together.
What happens at my first appointment?
Dr. Fest reviews your full health history, prior labs, and current symptoms. She begins building your personalized care plan before you leave that first visit.
What symptoms does functional medicine commonly address?
We work with fatigue, hormonal imbalances, digestive issues, thyroid concerns, brain fog, chronic inflammation, weight resistance, and perimenopause symptoms.
What diagnostic testing might be involved?
Dr. Fest may use GI-MAP microbiome analysis, hormone panels, micronutrient testing, or inflammatory markers, depending on your clinical picture.